Some architectures define PHYS_PFN_OFFSET to be != 0 (ARM for example). This
means that mem_map[0] is actually first page in kernel direct mapped view (which
is a valid page).
Change invalid pfn to be ULONGLONG_MAX instead of 0 to handle such cases.
Signed-off-by: Mika Westerberg <ext-mika.1.westerberg at nokia.com>
---
makedumpfile.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/makedumpfile.c b/makedumpfile.c
index a33bab6..89360bd 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -4383,7 +4383,8 @@ unsigned long long
page_to_pfn(unsigned long page)
{
unsigned int num;
- unsigned long long pfn = 0, index = 0;
+ unsigned long long pfn = ULONGLONG_MAX;
+ unsigned long long index = 0;
struct mem_map_data *mmd;
mmd = info->mem_map_data;
@@ -4398,7 +4399,7 @@ page_to_pfn(unsigned long page)
pfn = mmd->pfn_start + index;
break;
}
- if (!pfn) {
+ if (pfn == ULONGLONG_MAX) {
ERRMSG("Can't convert the address of page descriptor (%lx) to pfn.\n", page);
return ULONGLONG_MAX;
}
--
1.5.6.5
